The Korean particles "에" and "에서" are used to indicate location, but they serve different purposes. "에" is used to denote a static location or destination, often translated as "to" or "at." For example, when saying "학교에 가다" (go to 학교), it indicates the destination. On the other hand, "에서" is used to indicate the place where an action takes place, similar to "at" or "in." For instance, in the sentence "집에서 공부하다" (study at 집), it shows that the action of studying occurs at that location.